Fashion Design and Life Cycle of Stuff
Last week’s strategy: The Open Loop
Start with something unresolved. The brain can’t let go.
Anyone try it? Did you open a loop in your first 10 seconds?
What happened?
Week 2 taught you something uncomfortable: there is no single right answer.
The numbers changed depending on what you measured.
That wasn’t confusion — that was your first encounter with system complexity. Today, you’ll get a tool to cut through it.
Last week: “Which food is greenest?” — and the answer kept shifting.
This week: “How do you measure the real cost of what you wear?”
Same complexity. New tool: Life Cycle Assessment.
LCA gives you a framework for deciding where to draw the line when measuring environmental impact. That tool is portable — it works for food, fashion, buildings, energy, everything.
Your toolkit is growing: Spectacle Formula → Complexity → now: System Boundaries.
The average Hong Konger throws away 30kg of textiles per year.
That’s 110,000 tonnes of clothing in landfills — annually.
Your closet probably contains clothes you haven’t worn in over a year. Some still have tags on.
Now let’s talk about the life cycle of stuff.
Which is better for the environment?
A Beyond Burger (plant-based)
A chicken breast
Vote now.
A Beyond Burger produces approximately 3.5 kg CO₂e per kg.
A chicken breast produces approximately 4.5-6 kg CO₂e per kg.
So Beyond Burger wins… right?
Not so fast.
Beyond Burger requires heavy processing — extrusion, isolation, flavoring.
A 2023 study found that when you account for full supply chain processing, some plant-based meats approach or exceed chicken’s footprint.
And chicken? It’s the lowest-emission meat by a wide margin — 5-10x lower than beef.
The point: “Plant-based” doesn’t automatically mean “green.” You have to check the actual numbers.
Sources: Poore & Nemecek (2018) Science; Saget et al. (2021) Nature Food; UC Davis LCA studies
If your gut can be wrong about something as simple as a burger…
What else might you be wrong about?
Assumption: Organic cotton is more sustainable.
Reality: Organic cotton uses up to 91% more water than conventional cotton in many regions, with 20-50% lower yields — meaning more land required.
Organic avoids pesticides (good), but trades one environmental problem for another.
Source: Textile Exchange Organic Cotton Market Report; Mekonnen & Hoekstra (2011) Water Footprint Network
Assumption: Donating clothes = recycling = good.
Reality: Only about 10-15% of donated clothes are resold locally. Much of the rest is shipped to Ghana, Chile, and Kenya — where up to 40% ends up in landfills because the volume overwhelms local markets.
You’re not recycling. You’re exporting your guilt.
Source: OR Foundation (2022); ABC News “Dead White Man’s Clothes”; UNEP (2023)
Assumption: Reusable cotton bags are better than plastic.
Reality: A cotton tote must be used 131 times to have lower climate impact than a single disposable plastic bag.
An organic cotton tote? 20,000 times.
How many of you have used the same tote 131 times?
Source: UK Environment Agency Life Cycle Assessment (2011)
Assumption: Local food = lower carbon footprint.
Reality: A tomato shipped from Spain to the UK produces less CO₂ than one grown in a heated British greenhouse.
Transport is often only 5-10% of food’s carbon footprint. Growing conditions matter more.
Source: Weber & Matthews (2008) Environmental Science & Technology; Poore & Nemecek (2018)
Assumption: Electric cars are always greener.
Reality: An EV charged on a coal-heavy grid (parts of China, Poland, India) can have comparable or higher lifecycle emissions than a fuel-efficient hybrid.
The car isn’t the whole story. The grid is.
Source: IEA Global EV Outlook (2023); Lifecycle assessments vary by region
Not to make you cynical.
Not to say “nothing matters.”
But to show you: the truth is complicated.
And complicated truths make better arguments.
The facts you just saw all share something:
They violate expectations.
Your brain can’t ignore information that contradicts what it “knows.”
This is your most powerful rhetorical tool.
Common Assumption + Contradicting Fact + Source = “Wait, what?”
Once you have their attention, you can make your argument.
Without it, you’re just noise.
| Topic | “Wait, What?” Opening |
|---|---|
| Fast fashion | “Your ‘recycled’ H&M clothes are probably in a Ghanaian landfill right now.” |
| Sustainable fashion | “The organic cotton dress used more water than the synthetic one.” |
| Veganism & climate | “Almonds require 4x more water per gram of protein than chicken.” |
| Local food | “That Kent tomato has a higher carbon footprint than one from Spain.” |
| Electric vehicles | “Your Tesla might be dirtier than a Prius — depending where you charge it.” |
Always include your source. “Wait, what?” only works if it’s true.
The strongest debaters acknowledge complexity on their own side.
PRO-CLIMATE: “Yes, organic cotton uses more water. That’s why we advocate for systemic change, not just material substitution.”
PRO-DEVELOPMENT: “Yes, fast fashion has environmental costs. That’s why we push for innovation within the industry, not destruction of it.”
Acknowledging nuance makes you credible. Ignoring it makes you a propagandist.
I’m about to show you a detailed case study on denim production.
It will include a lot of facts. Some of it will feel like a textbook.
But there’s a reason.
As you listen, look for one key concept that anyone interested in fashion-related carbon emissions should walk away with:
Where do you draw the boundary?
I might do a small quiz before end of class.
Pay attention to what happens when you expand or contract the “system” you’re measuring.
denim, a quick case-study1.
1 Palais de l’eau. (2020, April 8). How we recycle denim to make the Recycled Denim Collection. https://palaisdeleau.com/magazine/recycle-denim-process/
Impression: Denim is durable and promises to have a long lifespan and is therefore an environmental-friendly and ethical product, at least better than its leather counterparties.
Pros:
Cons:
Pros:
Cons:
| Sustainable Fashion Benefits | Potential Negative Environmental Impacts |
|---|---|
| Waste Reduction | Energy and resource usages can be significant, possible offset of waste reduction benefits. |
| Resource Efficiency | Scalability limited, may hinder overall impact on resource conservation. |
| Unique Products | Bespoke nature of many sustainable fashion items leading to reduced desirability or quality, affecting market acceptance. |
| Awareness and Engagement | Sustainable practices can rely on more resource-intensive methods (e.g., organic cotton farming requires significant water). |
| Sustainable Fashion Benefits | Potential Negative Environmental Impacts |
|---|---|
| Extended Material Life | Downcycled products, while reducing waste, often result in lower-quality items with shorter lifespan. |
| Energy Conservation | Collection, transportation, and processing of materials for upcycling/downcycling still consume (more) energy. |
| Cost-Effectiveness | The financial sustainability contested by higher production costs and consumer price sensitivity. |
| Volume Reduction | Downcycling’s large-scale waste processing is offset by the end-life landfill risk due to lesser utility. |
All those numbers you just saw depend on one crucial decision:
Where do you draw the boundary of what you’re measuring?
Cradle-to-gate: Raw materials → Factory door
Cradle-to-grave: Raw materials → Consumer disposal
Cradle-to-cradle: Raw materials → Recycling → New product
Same product. Different boundaries. Completely different conclusions.
“40% of donated clothes end up in Ghanaian landfills.”
If your system boundary stops at “clothes donated” — recycling looks great.
If your system boundary extends to “where clothes actually end up” — you’re just exporting waste.
The boundary you choose determines the story you tell.
Anyone who gives you a simple answer is hiding their system boundary from you.
What is the single most important question to ask when someone tells you a product is “sustainable” or “green”?
Answer: “What system boundary are you using?”
Or more simply: “Sustainable compared to what, measured how, ending where?”
PRO-CLIMATE
= Consume Less, Better
= “Fast fashion is a climate crime”
PRO-DEVELOPMENT
= Affordable Access
= “Fashion jobs lift millions from poverty”
| PRO-CLIMATE | PRO-DEVELOPMENT |
|---|---|
| Reduce consumption | Enable affordable clothing |
| Slow fashion movement | Market-driven innovation |
| Regulation of industry | Consumer choice |
| Environmental costs matter | Jobs and livelihoods matter |
| Quality over quantity | Accessibility for all |
This tension defines every fashion sustainability debate.
“Hong Kong should impose a mandatory Extended Producer Responsibility scheme on all fashion retailers by 2030.”
(EPR = brands must take back and recycle/dispose of products they sell)
PRO-CLIMATE argues for. PRO-DEVELOPMENT argues against.
“Fast fashion isn’t free. Someone, somewhere is paying.”
— Lucy Siegle, journalist and author of To Die For: Is Fashion Wearing Out the World? (2011)
“The most sustainable garment is the one already in your wardrobe.”
— Orsola de Castro, co-founder of Fashion Revolution, Loved Clothes Last (2021)
“We are not asking brands to leave Bangladesh. We are asking them to stay — and pay fair wages.”
— Kalpona Akter, garment worker turned labor activist, Executive Director of the Bangladesh Center for Worker Solidarity (2019 interview, The Guardian)
“Fashion has always been about making beautiful things accessible. The question is how we do it responsibly.”
— Karl-Johan Persson, former CEO of H&M, responding to sustainability criticism (2019)
“Telling poor people to buy less is not a climate strategy. It’s class warfare disguised as environmentalism.”
— Pietra Rivoli, economist, author of The Travels of a T-Shirt in the Global Economy (2014 edition)
“When we closed one factory for violations, 3,000 workers lost their jobs. The activists celebrated. The workers didn’t.”
— Rubana Huq, President of BGMEA (Bangladesh Garment Manufacturers Association), 2022
All quotes verifiable via Google Scholar, The Guardian, or named publications. This is how you build credibility.
Your $15 H&M dress has a price tag.
It also has a shadow price — paid by someone else, somewhere else.
Water
2,700L per cotton t-shirt — enough drinking water for one person for 2.5 years
Carbon
Fashion = 10% of global emissions — more than aviation and shipping combined
Waste
One garbage truck of textiles landfilled or burned every second globally
Sources: WRAP; Ellen MacArthur Foundation; UN Environment Programme
Scenario 1: A new policy requires all clothing sold in Hong Kong to display its full carbon footprint on the label. Your favourite $99 H&M dress now shows: “This garment produced 33kg of CO₂.” Your sustainable alternative costs $800.
Do you still buy the cheap dress?
Scenario 2: Closing all fast fashion factories in Bangladesh would eliminate 4 million jobs — mostly held by women who are their families’ sole earners. But those factories dump 22,000 tonnes of toxic waste into rivers annually.
Do you support the closure?
PRO-CLIMATE says:
“Those 4 million jobs mean nothing if their children inherit a dead planet. We found alternatives to coal jobs. We can find alternatives here.”
PRO-DEVELOPMENT says:
“Easy to demand factory closures from your air-conditioned campus. Fatima doesn’t have a Plan B. Neither do her three kids. Your ‘ethical choice’ is her eviction notice.”
Fact + Human Story + Stakes = Spectacle
Weak
“Jeans use a lot of water”
Better
“One pair of jeans requires 7,500 liters of water”
Spectacle
“Your jeans drank more water than you will in 7 years. And you’ll throw them away in 18 months.”
Don’t say: “Fast fashion causes pollution.”
Say: “The river in Dhaka where they dye your $15 dress runs blue one day, red the next. Children play in that water. You wear their poisoned river.”
Don’t say: “We should buy less clothing.”
Say: “In 1960, the average American bought 25 garments a year. Now: 70. Your great-grandmother had one Sunday dress. You have a closet crisis.”
Don’t say: “Fashion provides jobs.”
Say: “Fatima in Bangladesh earns $100 a month sewing clothes. It’s not much — but it’s more than her mother made as a farm laborer. She sends her daughter to school. Want to close the factory?”
Don’t say: “Sustainable fashion is expensive.”
Say: “A $200 organic cotton shirt is a ‘conscious choice’ for a HKU student. For a cleaner in Sham Shui Po, it’s a month’s food budget. Who gets to be ethical?”
Reshma — Rana Plaza, 2013
Cracks appeared in the building. Engineer declared it unsafe. Bosses ordered workers back — or lose a month’s wages.
1,134 died. Reshma buried 17 days. Found alive.
“I heard voices for days, then they stopped.”
Labels in rubble: Primark, Benetton, Walmart.
Nasreen — Rangpur to Dhaka
Family were sharecroppers: $1-2/day. One meal during floods. At 16, factory job: $68/month.
First in family to own property. Sister finished school.
“My mother worked fields her whole life and owned nothing. I own a home.”
Now a line supervisor: $180/month.
Both stories are true. Both are the fashion industry.
Sources: BBC, Guardian, ILO, World Bank, Clean Clothes Campaign — all verifiable
✓ OK to Say
✗ NOT OK
What’s your stake? Why does your role/sector care about this outcome? What do you stand to gain or lose?
What’s your strongest evidence? What data, facts, or examples best support your position? Where might your evidence be weak?
Who wins? Who loses? If your side prevails, who benefits most — and who pays the price?
What would change your mind? What evidence or argument could genuinely shift your position?
What will your opponents say? Anticipate their strongest counterargument. How will you respond?
Where’s the common ground? Is there any compromise that both sides could accept?
“You have a tendency to be critical of yourself. You have a great need for others to like you. You have considerable unused capacity that you haven’t turned to your advantage.”
85% of people rate this as “highly accurate” for them.
It’s the same text for everyone.
This is the Barnum Effect (Forer, 1949).
Statements that feel specific but apply to almost everyone create false intimacy. Horoscopes, psychics, personality tests — all exploit this.
The trick: moderate specificity + universal anxiety.
People remember the hits, forget the misses.
When a speaker said something like:
“Some of you are thinking, ‘This doesn’t affect me.’ But you’re also wondering if you’re doing enough…”
Did it feel personal? It wasn’t. It was statistical.
But it worked.
Try this in your next presentation:
“You probably have clothes in your closet you haven’t worn in months. Maybe some still have the tags on. You tell yourself you’ll wear them eventually — but part of you knows you’re lying to yourself.”
This sounds personal. It applies to 90% of your audience.
That’s the Barnum Slide: universal truths disguised as personal insights.
Use it to create instant connection before your argument.
Write one sentence that sounds personal but applies to everyone in the room.
Test it. Watch faces.
Environmental Footprint
Resource Consumption
Waste and Landfill
Urgency in Fashion Reform
Sustainable Fashion Benefits
Consumer Health & Ethics
Economic Considerations
Questioning Effectiveness
Innovation & Market Forces
What is LCA?
LCA Stages
Fashion LCA Considerations
Water Usage
Chemical Use
Energy Consumption
Recycling Challenges
| Claim | Source |
|---|---|
| Beyond Burger ~3.5 kg CO₂e/kg | Saget et al. (2021) Nature Food; Heller & Keoleian (2018) |
| Chicken ~4.5-6 kg CO₂e/kg | Poore & Nemecek (2018) Science |
| Organic cotton 91% more water | Mekonnen & Hoekstra (2011); varies by region |
| Cotton tote 131 uses | UK Environment Agency (2011) LCA |
| 40% donated clothes to landfill | OR Foundation (2022); varies by destination |
| Fashion 10% of emissions | UNEP (2019); Ellen MacArthur Foundation |
| Spanish vs UK tomatoes | Weber & Matthews (2008); Garnett (2011) |
| EV emissions vary by grid | IEA (2023); Lifecycle studies vary significantly |
Note: Environmental data evolves. Always check for most recent LCA studies. Regional variations are significant.